Sentential logic, also known as propositional logic, examines the relationships between complete sentences or propositions. It focuses on how these…
Sentence letters, also known as propositional variables, are fundamental symbols in propositional logic. They represent simple declarative statements and act…
A semantically closed language includes its own truth predicate, enabling self-referential statements about the truth of sentences within the language…
A semantically valid formula, or tautology, is a statement that holds true for every possible interpretation. It's a fundamental concept…
The semantic tableau method is a systematic proof technique in logic. It employs a tree structure to analyze the truth…
A semantic paradox stems from peculiar semantic concepts like truth or falsity, distinct from logical or set-theoretical issues. The distinction…
Semantic consequence describes the logical relationship between premises and a conclusion in a formal language. It guarantees that no interpretation…
A theory of truth where statements correspond to facts or states of affairs. It highlights the crucial role of meaning…
Self-reference occurs when something points back to itself. This concept is crucial in understanding paradoxes, the nature of logic, and…
A self-contradictory statement contains internal inconsistencies, making it logically impossible to be true. It violates fundamental principles of logic, leading…